N580 M10 Exam Questions and
Complete Solutions Graded A+
Ho - Answer: -The experimental treatment is not more effective
-Statistical (null) hypothesis
-No relationships or difference
Ha - Answer: The experimental treatment is more effective
Inferential statistics - Answer: How probable is it that the null hypothesis is false?
Standard error of means (SEM) - Answer: -Standard deviation of a sampling distribution
-Quantifies how precisely you know the true mean of the population
-It takes into account both the value of the SD and the sample size
-SD & SEM are in the same units
-Gets smaller as your samples get larger
Point estimate - Answer: Mean of your sample
Interval estimate - Answer: Confidence interval
Effect size - Answer: -Measure that describes the magnitude of the difference between two groups
-"d"
-0.8 = large (8/10 of a SD)
-0.5 = moderate (1/2 of SD)
-0.2 = small (1/5 of a SD)
The null or statistical hypothesis proposes:
Complete Solutions Graded A+
Ho - Answer: -The experimental treatment is not more effective
-Statistical (null) hypothesis
-No relationships or difference
Ha - Answer: The experimental treatment is more effective
Inferential statistics - Answer: How probable is it that the null hypothesis is false?
Standard error of means (SEM) - Answer: -Standard deviation of a sampling distribution
-Quantifies how precisely you know the true mean of the population
-It takes into account both the value of the SD and the sample size
-SD & SEM are in the same units
-Gets smaller as your samples get larger
Point estimate - Answer: Mean of your sample
Interval estimate - Answer: Confidence interval
Effect size - Answer: -Measure that describes the magnitude of the difference between two groups
-"d"
-0.8 = large (8/10 of a SD)
-0.5 = moderate (1/2 of SD)
-0.2 = small (1/5 of a SD)
The null or statistical hypothesis proposes:
